Insulating device



FIG. 1 is a front view of an insulating device showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken lines immediately adjacent to the shaded area represent unclaimed boundaries of the design. The broken lines showing the remainder of the insulating device represent unclaimed stitching, unclaimed zipper teeth, or unclaimed subject matter. 

CLAIM The ornamental design for an insulating device, as shown and described. 